The DRD SA End Cap is an affordable option for motocross customers who, at times, visit state recreational areas and who want to retain, without reducing, overall performance.Additionally, the DRD Spark Arrestor End Cap accommodates the DRD Quiet Core (sold separately) for the noise conscious customer and to meet selected tracks/ riding areas with DB guidelines.

[...] The DRD end cap is extremely well machined. Old school style for my '04 YZ450F, has the downturned pipe. Looks alot like the stock unit. The rivets are probably the hardest rivets I've ever used, make sure you have a heavy duty rivet gun without a flexible head. Will need a rejet due to increased back pressure, was significantly more difficult to start after install.